William avattie



(No Model.)

W. WATTIE.

SHUTTLE BOX MECHANISM FOR Looms.

Patented Oct. 2, 1888.

InVEntnr Him h II 'WILLTAM \VATTIE, OF VVOROESTER,

MASSACHUSETTS, ASSIGNOR TO THE KNOWLES LOOM \VORKS, OF SAME PLACE.

SHUTTLE-BOX MECHANISM FOR LOOMS.

EPECIPICATION forming part of Letters Patent No. 390,419, dated October 2, 1888.

Application filed September-23.1887.

To all whom it may concern:

Be it known that 1, WILLIAM WA'r'rrE, a citizen of the United States, residing at Worcester, in the county of Worcester and 5 State of Massachusetts, have invented certain new and useful Improvements in Shuttle-Box Mechanism for Looms; and I do hereby declare that the following is a full, clear, and exact description-thereof, which, in connection with the drawings makingapart of this specification, will enable others skilled in the art I to which my invention belongs to make and use the same.

Myinvention relates to the drop-box-lifting r mechanism of looms; audit consists in certain novel features of construction of said lifting mechanism, as will be hereinafter fully described, and the nature thereof indicated by the claims.

The object of my invention is to add rigidity to the overhanging end of the lay of the loom, and to relieve somewhat the strain on the shuttle-box rod, for the purpose of securing greater accuracyin throwing the shuttles, and also to provide for the lengthening of the box-rod-supporting spriug,as will be hereinafter set forth.

Referring to thedrawings, Figure 1 is a side elevation of one end of the lay of a loom to 0 which my invention is applied. Fig. 2 is a section on line XX, Fig. 1, lookingin the di rectionof the arrow, same figure; and Fig. 3 is a detail ofa modified form of the liftingyoke.

In the accompanying drawings, 1 is a portion of theloom side. 2 is the lay end casting, of which the sword 3 forms apart, and 4 is the dropshuttle box, represented with six cells. 5 is the lay-pivot, and 6 the lifter-rod arm 0 supported by the hub 7 on the end of the lay rocker-shaft, all in the usual way. 8 is a forked casting bolted to the arm 6, terminating in hubs .),through which the guide-rods 10 pass, secured thereto by set-screws 11. The

5 upperends of the guiderods 10 are screwed into hubs 12,cast on the plate 13, which serves as a guide for the lifter-fork 1 1 and stand for the box-chains heavcs 1.5.

Sliding freely upon the guide rods 10 is the 0 lifter-yoke 16, which has cast uponits upper and lower bars hubs 17 and 17, through which passes the lifter-rod 18, the upper end of which is fastened to the drop-box 4. The yoke 16 is retained on the lifter-rod 18 by the collar 19, provided with a set-screw, 19'. A steel coiled spring, 21, encircles the lifter-rod 18, and passes through the hub 17 on the upper bar of the yoke 16, and is confined between the hub 17 and a hub, 20, on the lifter fork 14, said spring 21 being of sufficient strength and being sufficiently compressed to uphold the weight of the drop'box 4 and its moving attachments.

The spring 21 is the commonly-used safety devicein connection with drop-boxes of looms, for should the shuttle fail to pass properly and block the shuttle-box, so it could not rise, the spring 21 would permit the boxmoving mechanism to move against the spring, thus obviating breakage, and by means of the lifter- 7o yoke 16, having a hub, 17, upon the upper bar thereof, through which the support-ingspring 21 passes,'in connection with the guiderods 10, upon which the yoke 16 slides as the shuttles are raised or lowered, I am enabled to lengthen the spring 21 and to have itslower end extend down almost to the lower end of the box-rod 18, thus using and obtaining the free action of the box-supporting spring practically as long as the box rod itself.

The lifter-yoke 16 has cast upon it also an other hub, 22, through which,by means of the chain 23, connection is made between. said lifter-yoke and the ordinary shuttle-box mo tion, as shown in United States Patent'No. 134,992, of January 21., 1873.

Ordinarily the lifter-rod 1.8, with its confined spring 21, is guided loosely at its lower end in a socket attached to the arm 6, and there is no other connection between the said 0 arm and the lay-beam; but in my improve ment it will be seen that the guide-rods 1O act as a rigid brace between the foot of the rocker and the overhanging end of the lay, and that thereby thelay end is prevented from 5 sagging out of line with the race-plate, and the tremor which frequently causes a shuttle to fly out of its course is obviated.

' As ordinarily constructed with a single guide ontheliftcr-rod, if the box-chain should 10o pull alittle out of line it sometimes happens that the guide is cramped, causing a jerky movement when the box motion acts, thus making troublein properly throwing the shuttle. By my improved construction I secure a long and broad bearing of thelifter-rod guide, so that this can never happen, and I also provide for the lengthening of the boX-rod-supporting spring and the extension of its lower end to almost thelower end of the box-rod itself.

The lifter-yoke 16 might be advantageously shortened, in which case the hubs 17 and 22 could be cast on opposite sides of the same bar 24, (see Fig. 3,) and the hubs 25 lengthened to provide surface on the rods, the spring being placed entirely above the bearings of the guide.

Having thus described my invention, what I claim as new, and desire to secure by Letters Pat ent, is-

. 1. The combination, with the lay having ,the overhanging end and the lay rocker-shaft,

and the guide-rods 10,forn1ing a rigid connection between said overhanging lay end and rocker-shaft, of a tier of shuttle-boxes, a boxlifter rod, 18, fastened at its upper end to said shuttle-boxes, with its lower end extending.

constructed and arranged substantially as,

shown and described.

2. The lay having the overhanging end,the lay rocker-shaft, the guide-rods 10, extending between the same, the tier of shuttle-boxes, the box-lifter rod 18, the yoke 16, through which the lower end of the rod 18 passes,said yoke 16 having its bearing and sliding on the rods 10, the box-supporting spring 21, encircling the rod 18 and extending nearly to the lower end thereof, passing through the yoke 16, and the connection from said yoke to the box-operating mechanism, all combined together substantially as shown and described.

WILLIAM WATTIE.

Witnesses:

JOHN C. DEWEY, M. RALPH DRYDEN. 

